My Minecraft has crashed three times since switching over to 1.6.2 for no real reason. I'm not a computer genius so I don't even know how to read the crash report. Here's what the launcher told me.

---- Minecraft Crash Report ----
// Everything's going to plan. No, really, that was supposed to happen.

Time: 7/9/13 9:33 PM
Description: Deserializing Message

java.lang.ClassCastException: com.google.gson.JsonPrimitive cannot be cast to com.google.gson.JsonObject
at cw.a(SourceFile:14)
at cw.deserialize(SourceFile:10)
at com.google.gson.TreeTypeAdapter.read(TreeTypeAdapter.java:58)
at com.google.gson.Gson.fromJson(Gson.java:795)
at com.google.gson.Gson.fromJson(Gson.java:761)
at com.google.gson.Gson.fromJson(Gson.java:710)
at com.google.gson.Gson.fromJson(Gson.java:682)
at cu.c(SourceFile:220)
at bct.a(SourceFile:522)
at dl.a(SourceFile:49)
at cn.b(SourceFile:354)
at bct.e(SourceFile:98)
at bda.b(SourceFile:60)
at ats.k(SourceFile:1386)
at ats.S(SourceFile:663)
at ats.d(SourceFile:619)
at net.minecraft.client.main.Main.main(SourceFile:101)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

– Head –
Stacktrace:
at cw.a(SourceFile:14)
at cw.deserialize(SourceFile:10)
at com.google.gson.TreeTypeAdapter.read(TreeTypeAdapter.java:58)
at com.google.gson.Gson.fromJson(Gson.java:795)
at com.google.gson.Gson.fromJson(Gson.java:761)
at com.google.gson.Gson.fromJson(Gson.java:710)
at com.google.gson.Gson.fromJson(Gson.java:682)

– Serialized Message –
Details:
JSON string: Cannot send chat message.
Stacktrace:
at cu.c(SourceFile:220)
at bct.a(SourceFile:522)
at dl.a(SourceFile:49)
at cn.b(SourceFile:354)
at bct.e(SourceFile:98)

– Affected level –
Details:
Level name: MpServer
All players: 9 total; [bdf['Avia_Podrocks'/11380137, l='MpServer', x=114.64, y=141.62, z=6.62], bev['kitto_roren'/10119605, l='MpServer', x=109.68, y=140.00, z=8.19], bev['toxikman15'/10746759, l='MpServer', x=113.56, y=140.56, z=0.78], bev['moser1212'/10735490, l='MpServer', x=74.44, y=140.00, z=35.72], bev['willdriva'/11691876, l='MpServer', x=109.42, y=141.00, z=-2.09], bev['Noah_George'/11684448, l='MpServer', x=110.22, y=142.00, z=-1.31], bev['mcpemaster909'/10359964, l='MpServer', x=85.88, y=140.00, z=10.69], bev['DedemberOfDoom'/11679101, l='MpServer', x=122.12, y=140.00, z=0.11], bev['XxHyperxBladexX'/10355319, l='MpServer', x=91.50, y=140.00, z=6.41]]
Chunk stats: MultiplayerChunkCache: 225
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (0,65,0), Chunk: (at 0,4,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 1644385 game time, 3395830 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: adventure (ID 2). Hardcore: false. Cheats: false
Forced entities: 42 total; [ua['§a?????'/11994918, l='MpServer', x=122.22, y=140.00, z=-0.06], bev['XxHyperxBladexX'/10355319, l='MpServer', x=122.40, y=140.27, z=-13.42], tv['§c?????'/11994917, l='MpServer', x=105.00, y=34.89, z=5.00], ua['§a?????'/11994095, l='MpServer', x=106.00, y=140.00, z=-5.00], tv['§c?????'/11994094, l='MpServer', x=127.36, y=140.00, z=17.46], bev['mcpemaster909'/10359964, l='MpServer', x=85.88, y=140.00, z=10.69], bdf['Avia_Podrocks'/11380137, l='MpServer', x=114.64, y=141.62, z=6.62], tq['§c?????'/11993209, l='MpServer', x=133.00, y=140.00, z=-26.00], bev['Fireball1011'/10690073, l='MpServer', x=-0.94, y=140.00, z=7.94], ua['§a?????'/11993208, l='MpServer', x=76.47, y=140.00, z=-27.52], bev['rhoadsmt'/10671492, l='MpServer', x=-9.28, y=140.00, z=3.44], bev['kitto_roren'/10119605, l='MpServer', x=109.68, y=140.00, z=8.19], bev['DedemberOfDoom'/11679101, l='MpServer', x=122.12, y=140.00, z=0.11], bev['djcruiser'/10686897, l='MpServer', x=-9.06, y=140.00, z=2.97], bev['moser1212'/10735490, l='MpServer', x=74.44, y=140.00, z=35.72], bev['mcpemaster909'/10359964, l='MpServer', x=-13.50, y=140.78, z=-14.88], tv['§c?????'/11993207, l='MpServer', x=81.92, y=140.00, z=18.19], bev['cruise02'/10691796, l='MpServer', x=-13.16, y=140.00, z=-1.50], bev['toxikman15'/10746759, l='MpServer', x=113.56, y=140.56, z=0.78], bev['Noah_George'/11684448, l='MpServer', x=-9.69, y=140.00, z=1.84], bev['willdriva'/11691876, l='MpServer', x=109.42, y=141.00, z=-2.09], bev['XxHyperxBladexX'/10355319, l='MpServer', x=-12.34, y=140.00, z=3.63], bev['DedemberOfDoom'/11679101, l='MpServer', x=129.94, y=140.50, z=23.03], tm['§6????§f?'/11992411, l='MpServer', x=105.00, y=-92.01, z=5.00], bev['XxHyperxBladexX'/10355319, l='MpServer', x=91.50, y=140.00, z=6.41], td['§c?????'/11992410, l='MpServer', x=109.58, y=141.34, z=0.78], ts['§c?????'/11992409, l='MpServer', x=136.57, y=140.00, z=26.14], tq['§c?????'/11992408, l='MpServer', x=133.00, y=140.00, z=-26.00], tk['§6Mr. Angry'/11992412, l='MpServer', x=127.25, y=140.00, z=0.69], ua['§a?????'/11992407, l='MpServer', x=77.38, y=140.00, z=-26.63], tv['§c?????'/11992406, l='MpServer', x=87.63, y=140.27, z=11.87], bev['toxikman15'/10746759, l='MpServer', x=113.56, y=140.56, z=0.78], bev['DedemberOfDoom'/11679101, l='MpServer', x=122.12, y=140.00, z=0.11], bev['Noah_George'/11684448, l='MpServer', x=110.22, y=142.00, z=-1.31], bev['MiniAwesomeMan'/8402135, l='MpServer', x=100.94, y=140.00, z=4.28], bev['XxHyperxBladexX'/10355319, l='MpServer', x=134.45, y=140.00, z=-0.05], bev['mcpemaster909'/10359964, l='MpServer', x=85.88, y=140.00, z=10.69], bev['willdriva'/11691876, l='MpServer', x=109.42, y=141.00, z=-2.09], bev['Noah_George'/11684448, l='MpServer', x=110.22, y=142.00, z=-1.31], bev['kitto_roren'/10119605, l='MpServer', x=109.68, y=140.00, z=8.19], bev['moser1212'/10735490, l='MpServer', x=74.44, y=140.00, z=35.72], bev['XxHyperxBladexX'/10355319, l='MpServer', x=91.50, y=140.00, z=6.41]]
Retry entities: 0 total; []
Server brand: craftbukkit
Server type: Non-integrated multiplayer server
Stacktrace:
at bda.a(SourceFile:284)
at ats.k(SourceFile:1393)
at ats.S(SourceFile:663)
at ats.d(SourceFile:619)
at net.minecraft.client.main.Main.main(SourceFile:101)

– Affected level –
Details:
Level name: MpServer
All players: 9 total; [bdf['Avia_Podrocks'/11380137, l='MpServer', x=114.64, y=141.62, z=6.62], bev['kitto_roren'/10119605, l='MpServer', x=109.68, y=140.00, z=8.19], bev['toxikman15'/10746759, l='MpServer', x=113.56, y=140.56, z=0.78], bev['moser1212'/10735490, l='MpServer', x=74.44, y=140.00, z=35.72], bev['willdriva'/11691876, l='MpServer', x=109.42, y=141.00, z=-2.09], bev['Noah_George'/11684448, l='MpServer', x=110.22, y=142.00, z=-1.31], bev['mcpemaster909'/10359964, l='MpServer', x=85.88, y=140.00, z=10.69], bev['DedemberOfDoom'/11679101, l='MpServer', x=122.12, y=140.00, z=0.11], bev['XxHyperxBladexX'/10355319, l='MpServer', x=91.50, y=140.00, z=6.41]]
Chunk stats: MultiplayerChunkCache: 225
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (0,65,0), Chunk: (at 0,4,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 1644385 game time, 3395830 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: adventure (ID 2). Hardcore: false. Cheats: false
Forced entities: 42 total; [ua['§a?????'/11994918, l='MpServer', x=122.22, y=140.00, z=-0.06], bev['XxHyperxBladexX'/10355319, l='MpServer', x=122.40, y=140.27, z=-13.42], tv['§c?????'/11994917, l='MpServer', x=105.00, y=34.89, z=5.00], ua['§a?????'/11994095, l='MpServer', x=106.00, y=140.00, z=-5.00], tv['§c?????'/11994094, l='MpServer', x=127.36, y=140.00, z=17.46], bev['mcpemaster909'/10359964, l='MpServer', x=85.88, y=140.00, z=10.69], bdf['Avia_Podrocks'/11380137, l='MpServer', x=114.64, y=141.62, z=6.62], tq['§c?????'/11993209, l='MpServer', x=133.00, y=140.00, z=-26.00], bev['Fireball1011'/10690073, l='MpServer', x=-0.94, y=140.00, z=7.94], ua['§a?????'/11993208, l='MpServer', x=76.47, y=140.00, z=-27.52], bev['rhoadsmt'/10671492, l='MpServer', x=-9.28, y=140.00, z=3.44], bev['kitto_roren'/10119605, l='MpServer', x=109.68, y=140.00, z=8.19], bev['DedemberOfDoom'/11679101, l='MpServer', x=122.12, y=140.00, z=0.11], bev['djcruiser'/10686897, l='MpServer', x=-9.06, y=140.00, z=2.97], bev['moser1212'/10735490, l='MpServer', x=74.44, y=140.00, z=35.72], bev['mcpemaster909'/10359964, l='MpServer', x=-13.50, y=140.78, z=-14.88], tv['§c?????'/11993207, l='MpServer', x=81.92, y=140.00, z=18.19], bev['cruise02'/10691796, l='MpServer', x=-13.16, y=140.00, z=-1.50], bev['toxikman15'/10746759, l='MpServer', x=113.56, y=140.56, z=0.78], bev['Noah_George'/11684448, l='MpServer', x=-9.69, y=140.00, z=1.84], bev['willdriva'/11691876, l='MpServer', x=109.42, y=141.00, z=-2.09], bev['XxHyperxBladexX'/10355319, l='MpServer', x=-12.34, y=140.00, z=3.63], bev['DedemberOfDoom'/11679101, l='MpServer', x=129.94, y=140.50, z=23.03], tm['§6????§f?'/11992411, l='MpServer', x=105.00, y=-92.01, z=5.00], bev['XxHyperxBladexX'/10355319, l='MpServer', x=91.50, y=140.00, z=6.41], td['§c?????'/11992410, l='MpServer', x=109.58, y=141.34, z=0.78], ts['§c?????'/11992409, l='MpServer', x=136.57, y=140.00, z=26.14], tq['§c?????'/11992408, l='MpServer', x=133.00, y=140.00, z=-26.00], tk['§6Mr. Angry'/11992412, l='MpServer', x=127.25, y=140.00, z=0.69], ua['§a?????'/11992407, l='MpServer', x=77.38, y=140.00, z=-26.63], tv['§c?????'/11992406, l='MpServer', x=87.63, y=140.27, z=11.87], bev['toxikman15'/10746759, l='MpServer', x=113.56, y=140.56, z=0.78], bev['DedemberOfDoom'/11679101, l='MpServer', x=122.12, y=140.00, z=0.11], bev['Noah_George'/11684448, l='MpServer', x=110.22, y=142.00, z=-1.31], bev['MiniAwesomeMan'/8402135, l='MpServer', x=100.94, y=140.00, z=4.28], bev['XxHyperxBladexX'/10355319, l='MpServer', x=134.45, y=140.00, z=-0.05], bev['mcpemaster909'/10359964, l='MpServer', x=85.88, y=140.00, z=10.69], bev['willdriva'/11691876, l='MpServer', x=109.42, y=141.00, z=-2.09], bev['Noah_George'/11684448, l='MpServer', x=110.22, y=142.00, z=-1.31], bev['kitto_roren'/10119605, l='MpServer', x=109.68, y=140.00, z=8.19], bev['moser1212'/10735490, l='MpServer', x=74.44, y=140.00, z=35.72], bev['XxHyperxBladexX'/10355319, l='MpServer', x=91.50, y=140.00, z=6.41]]
Retry entities: 0 total; []
Server brand: craftbukkit
Server type: Non-integrated multiplayer server

– System Details –
Details:
Minecraft Version: 1.6.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.6.0_17, Sun Microsystems Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
Memory: 20991928 bytes (20 MB) / 107282432 bytes (102 MB) up to 954466304 bytes (910 MB)
JVM Flags: 1 total; -Xmx1G
AABB Pool Size: 315 (17640 bytes; 0 MB) allocated, 221 (12376 bytes; 0 MB) used
Suspicious classes: No suspicious classes found.
IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
Launched Version: 1.6.2
LWJGL: 2.9.0
OpenGL: ATI Mobility Radeon HD 4250 GL version 3.2.9752 Compatibility Profile Context, ATI Technologies Inc.
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Pack: Default
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 99 (5544 bytes; 0 MB) allocated, 48 (2688 bytes; 0 MB) used